Desulfuromonas svalbardensis sp. nov. and Desulfuromusa ferrireducens sp. nov., psychrophilic, Fe(III)-reducing bacteria isolated from Arctic sediments, Svalbard

International Journal of Systematic and Evolutionary Microbiology
Verona VandiekenBo Barker Jørgensen

Abstract

Two psychrophilic, Gram-negative, rod-shaped, motile bacteria (strains 112T and 102T) that conserved energy from dissimilatory Fe(III) reduction concomitant with acetate oxidation were isolated from permanently cold Arctic marine sediments. Both strains grew at temperatures down to -2 degrees C, with respective temperature optima of 14 degrees C and 14-17 degrees C for strains 112T and 102T. The isolated strains reduced Fe(III) using common fermentation products such as acetate, lactate, propionate, formate or hydrogen as electron donors, and they also grew with fumarate as the sole substrate. As alternatives to Fe(III), they reduced fumarate, S0 and Mn(IV). Based on 16S rRNA gene sequence similarity, strain 112T was most closely related to Desulfuromonas acetoxidans (97.0 %) and Desulfuromonas thiophila NZ27T (95.5 %), and strain 102T to Malonomonas rubra Gra Mal 1T (96.3 %) and Desulfuromusa succinoxidans GylacT (95.9 %) within the Deltaproteobacteria. Strains 112T and 102T therefore represent novel species, for which the names Desulfuromonas svalbardensis sp. nov. (type strain 112T=DSM 16958T=JCM 12927T) and Desulfuromusa ferrireducens sp. nov. (type strain 102T=DSM 16956T=JCM 12926T) are proposed.

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Citations

Oct 16, 2012·Extremophiles : Life Under Extreme Conditions·Lilia MontoyaAngel G Alpuche-Solís
Feb 8, 2008·Bioscience, Biotechnology, and Biochemistry·Shun'ichi IshiiKazuya Watanabe
Jun 10, 2011·Journal of Basic Microbiology·Hong-Mei YangXiao-Long Ma
Feb 26, 2015·International Journal of Systematic and Evolutionary Microbiology·Zong-Jie WangGuan-Jun Chen
May 3, 2008·International Journal of Systematic and Evolutionary Microbiology·Evgenya S ShelobolinaDerek R Lovley
Mar 5, 2015·International Journal of Systematic and Evolutionary Microbiology·Thuy T An, Flynn W Picardal
Jun 10, 2015·Water Research·Alessandro A Carmona-MartínezNicolas Bernet
Feb 1, 2011·FEMS Microbiology Ecology·Christine M ForemanDiane M McKnight
Oct 21, 2016·Applied Microbiology and Biotechnology·Charlotte I CarlströmJohn D Coates
Sep 4, 2007·International Journal of Systematic and Evolutionary Microbiology·Priya Narasingarao, Max M Häggblom
Dec 29, 2020·Frontiers in Plant Science·Igor Daniel Alves RibeiroLuciane Maria Pereira Passaglia
May 30, 2021·Environment International·David A AromokeyeMichael W Friedrich
Jun 23, 2021·The ISME Journal·Lea C WunderMichael W Friedrich

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